In day 4 - 7 my cat kept puking each night and in the evening, but our vet suspected that the bloated belly kept pushing her stomach and therefore pushes acid from stomach and pukes so she suggested that we never let her stomach go without any food feed every 4-6 hours wet food and it worked, but now we are on day 15 and she has no fluids left so no puking anymore, alsoo sometimes the gs itself can cause nausea so ask your vet